Results 51 to 60 of about 129,721 (164)
Petroleum Exploration and Development, 2012 A series of seismic exploration technologies, such as “wide line and big combination” mountainous seismic acquisition, high steep structure pre-stack depth migration processing and deep tectonic modeling, were used to explore Kuqa deep structures.
Jinhu DU +4 more
doaj
Hot Jupiters Have Giant Companions: Evidence for Coplanar High-eccentricity Migration
The Astrophysical Journal Letters, 2023 This study considers the characteristics of planetary systems with giant planets based on a population-level analysis of the California Legacy Survey planet catalog. We identified three characteristics common to hot Jupiters (HJs).
Jon K. Zink, Andrew W. Howard
doaj +1 more source
The comparative effect of FUV, EUV and X-ray disc photoevaporation on gas giant separations [PDF]
, 2018 Gas giants' early ($\lesssim 5$ Myr) orbital evolution occurs in a disc losing mass in part to photoevaporation driven by high energy irradiance from the host star. This process may ultimately overcome viscous accretion to disperse the disc and halt migrating giants by starving their orbits of gas, imprinting on giant planet separations in evolved ...
arxiv +1 more source
Petroleum Exploration and Development, 2014 The Anyue Sinian–Cambrian giant gas field was discovered in central paleo-uplift in the Sichuan Basin in 2013, which is a structural-lithological gas reservoir, with 779.9 km2 proven gas-bearing area and 4 403.8×108 m3 proven geological reserves in the ...
Caineng ZOU +14 more
doaj
Journal of Marine Science and EngineeringAlthough the eastern African continental marginal basins have discovered giant gas fields, it is not clear whether the Early Jurassic gypsum associated with the main source rocks controls the gas play.
Jun Cai, Rong Guo
doaj +1 more source
Rapid Formation of Icy Super-Earths and the Cores of Gas Giant Planets [PDF]
, 2008 We describe a coagulation model that leads to the rapid formation of super-Earths and the cores of gas giant planets. Interaction of collision fragments with the gaseous disk is the crucial element of this model. The gas entrains small collision fragments, which rapidly settle to the disk midplane.
arxiv +1 more source
Petroleum Exploration and Development, 2009 The comprehensive analysis of geological setting, accumulation condition, trapping mechanism and distribution regularity of oil-gas of the Upper Triassic in Sichuan Basin reveals that the gas accumulation in Xujiahe Formation is a layered lithologic ...
Zou Caineng +11 more
doaj
The Formation of Uranus and Neptune: Fine Tuning in Core Accretion [PDF]
, 2017 Uranus and Neptune are ice giants with $\sim$ 15% atmospheres by mass, placing them in an intermediate category between rocky planets and gas giants. These atmospheres are too massive to have been primarily outgassed, yet they never underwent runaway gas accretion.
arxiv +1 more source
Energy Exploration & Exploitation, 2018 Old Mesoproterozoic−Cambrian successions have been regarded as an important frontier field for global oil and gas exploration in the 21st century. This has been confirmed by a recent natural gas exploration breakthrough in the Sinian and Cambrian strata,
Bing Luo +5 more
doaj +1 more source
Exploring the conditions for forming cold gas giants through planetesimal accretion [PDF]
, 2019 The formation of cold gas giants similar to Jupiter and Saturn in orbit and mass is a great challenge for planetesimal-driven core accretion models because the core growth rates far from the star are low. Here we model the growth and migration of single protoplanets that accrete planetesimals and gas.
arxiv +1 more source